The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 1989
Filed:
Oct. 19, 1987
Charles W Mallory, Severna Park, MD (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A thermal protection shell for protecting the exterior walls of a radioactive waste container disclosed herein. The shell generally comprises a wall of heat conductive material, such as aluminum or magnesium, which circumscribes and engages the exterior of the waste container walls in intimate, heat-conducting contact under ambient temperature conditions. The thermal coefficient of expansion of the material forming the shell is chosen to be greater than the thermal coefficient of expansion of the material forming the container walls, which are typically steel, so that the heat-conducting contact between the shell and the outer walls is broken when the shell is exposed to a fire. The shell is formed in sections which are rigidly interconnectable by bolt assemblies formed from the same material as the shell itself. The use of such sections allows the shell to be easily mounted over existing radioactive waste containers, and adjusted to fit containers of different diameters.